Interfilling is a subsidiary of Keystone Research and Pharmaceuticals. Keystone produces innovative dental, cosmetic and medical products. The group has branches in the United States, China and Europe.


In common with Keystone, Interfilling aspires to optimal customer satisfaction. This is based on exceptional quality, rapid delivery and competitive prices. In addition, we aim to make things as easy as possible for our customers by providing a broad package of services in which the needs of the customer take centre stage.


Our ‘from start to finish’ service encompasses: Advice on and procurement of containers, Stability testing, Filling and sealing, Labelling and pad printing, Packaging, Shipping

This is how Interfilling takes care of quality. Would you like to know what we can do for you? Just contact us.

Terms of delivery
See here our terms of delivery


Thanks to a very experienced team, specialist equipment and strict procedures we always deliver an end product that meets the highest quality requirements.

Each step in the production process is checked and documented. In addition, we take at least six samples of each series for quality control purposes. These are retained for three years.

Consistent high quality does not characterise the end products alone. We also set the bar high when it comes to production and to dealing with people and the environment.

Wherever possible we use sustainable, biodegradable materials. We endeavour to minimise energy consumption and waste flows. And we offer our team a pleasant and safe environment in which to enjoy their work!


Interfilling has ISO 22716 certification. But that is our point of departure rather than our final goal. Interfilling uses a careful approach to safety, health, quality and the environment. We also have a Bio certification for packing, packaging and sorting.


The combination of flexibility, certified quality and competitive prices ensure high customer satisfaction. So contact us quickly and challenge us. We are happy to work for you!

Interfilling team
Soraya Hehanussa
Office Manager
Patrick Timmermans
Operational Manager
Miranda Uphoff
Senior Manager
Marjon Sens
Quality Manager
Leila Amini
Product Manager Packaging
Kelly Medina van Loon
Chief of Staff
Natasha van Vliet
General Support
Roy Schoenmakers
Production Leader Fulfillment
Lets Meet!